Coke oven door



May 19, 1936. P VAN ACKEREN 2,040,887

COKE OVEN DOOR Filed May 3, 1932 2 SheeJs-Sheel'l 1 Unvenlar;

May 19, 1936. P. VAN ACKEREN 2,040,887

COKE OVEN DOOR Filed May 3, 1932 2 Sheets-Sheet 2 @l f8 2o zo si f VfR-I7 ii ZZ i o l@ @l o l C@ Q a A I Q i \i Q O Q) f l 8 V I /l/ i 26 l-O Q Q O Z7 I E: Z8

Q La 4 i o O t Q 25 I "t9 l 'i \9- 5 4 '5 i i I i i 1 l i Patented May19, 1936 UNITED STATES COKE lOVEN Doon Paul Van Ackeren, Essen, Germany,assig'nor, by mesne assignments, to The Koppers Company of Delaware,Pittsburgh, Pa., a corporation of Delaware Application May3, 1932,Serial No. 608,873

In Germany May 4, 1931 2 Claims.

This invention relates to coke oven doors, that is to the door-likearrangements employed for closing during the coking pro-cess theapertures through which the coke is removedl from the chambers of cokeovens, and has more particular reference to coke oven doors of the typein Which the crack or fissure between door and door frame is selectivelyeither closed` with. clay or the like or covered by a metal frameresting on at sealing surfaces or in flat grooves formed in the door ordoor frame.

In my pending patent application relating to coke oven doors filedDecember 5, 1930, Serial No. 500,221, I have described a coke oven doorwhich u can be used either with a so-called clay packing or a so-calledmetal-on-metal sealing. In the door described in this prior patentapplication, when the metal-on-metal sealing is employed, the doorfissure is closed by a resilient sheet metal frame running substantiallyparallel to the plane of the door which is secured to the outerperiphery of the door and has an edge projection or flange facingtowards the door frame which when the door is closed applies itselfresiliently against a suitable sealing or packing surface formed on thedoor frame. If my prior coke oven door is used with clay packing themetal sealing frame descrlbed is removed fro-m the door so that thepacking clay can be pressed into the space between the faces of the dooror door frame which widen outwards in the form of a wedge. For thispurpose the door frame is provided with an outwardly projectingperipheral bar which when the door is set in position in the frameprojects somewhat, beyond the door element on all sides.

One object kof my present invention is to provide an improved coke ovendoor adapted to be used selectively either with clay packing or with ametal-on-metal sealing without a metal sealing frame having to beremoved from or secured to the door element when the manner of sealingthe door is changed.

The essential feature of the coke oven door constructed in accordancewith my present invention is the provision of a resilient metal sealingiframe on the side of the door element facing the coking chamber, thesaid sealing frame being secured to the door element in such a mannerthat its projecting sealing surface can be adjusted relatively to thedoor element or bent in accordance with the existing course of thesealing surface of the door frame.

Reference will now be made to the accompanying drawings in which I haveillustrated a coke oven door constructed in accordance with my presentinvention and in which:-

Figure 1 is a section taken through the door along the line I-I ofFigure 2, and

Figure 2 is an elevational view of the door, the upper part thereofbeing omitted for clearness of illustration, being the same as the lowerpartV shown.

In the embodiment of my invention which is illustrated in the drawingsthe coke oven door serves to close the chamber I of a horizontal chamberoven consisting of refractory brickwork 2. The brickwork 2 of the ovenis surrounded externally by a metal covering 3 having anchor stanchions4 which serve to hold together the brickwo-rk blocks of the oven.

On the metal covering 3 around the door aperture or doorway of thecoking chamber I a metal frame 5 is secured, packing' material 6 beingprovided between the frame 5 and the metal covering 3. The door frame 5is secured by means of bolts 8 (only one of which is shown in detail inFig. 1 and four inA Fig. 2, since the others are duplicates thereof)whose heads engage in cavities 1 inthe metal covering 3. The door frame5 is provided externally with a peripheral bar,- shaped extension 9which is provided at the parts adjacent the bolts 8 with reinforcingribs I0 on whose end surfaces the nuts II of the bolts 8 eirgage throughthe intermediary of plate springs resiliently against the metal coveringof the oven brickwork so that when the metal covering 3 bends as it mustdo during the operation of the oven the door frame 5 remains unharmed.

The door itself consists of a stopper-shaped element I3 composed ofrefractory material which when the door is set in position projects intothe oven chamber approximately as far as the heating zone. 'I'he stopperelement I3 is secured by bars I4 to the metal door element I5 which hasan edge projection or ange I5 engaging over the door frame 5 on allsides and providing on the edge I6 of the door an inner face ISE havinga groove I1 of approximately Ushaped cross section. In the groove I1selfsealing means are provided comprising a resilient packing materialI8 in which a sealing frame I9 consisting of resilient T-iron or thelike is embedded in such a manner that one edge of the T-iron projectsout from the groove I1..

The projecting edge of the frame I9 is shaped in the form of a knife andwhen the door is shut In this mannerthe door frame 5 is held itappliesitself against a suitable sealing surface 2l of thedoor frame I.

In Iorder to enable kthe sealing edge of the metal frame i9 to beadapted when necessary to the sealing surface 20 of the door frame l,set screws 2i are provided on the door element which act vthrough theintermediary `of a press frame 22 on the packing material provided inthe groove -of said channel 23.

Il which consists preferably of asbestos or the like. Preferably thesection of the groove l1 is reduced somewhat outwardly so that thepacking material' I8 is pressed like a wedge by the screws 2| into thegroove I1 thus forming-a very eiective packing.

When the door illustrated in the drawings ls used with clay packing theclay paste is introduced into the space of the luting channel indicatedat 23 between the peripheral bar-shaped extension 9 of the door frame 5andthe face of the door projection or peripheral luting member I6 on thedoor. As shown in Figure 1 the peripheral luting member I6 on the doorand the peripheral bar-shaped extension 9 cooperate to form a lutingchannel 2l for pacldng material. and the self-sealing means is withinthe confines The packing space 22 is of approximately V-shaped section,the .end face I6' of the door projection I6 and the inner face 9' of thebar 9 of the doorl frame 5 gradually becoming more remote from eachother outwardly.

The door is secured in the door frame by means of the rotary bolt bar 24mounted rotatably in a bearing 25 of the door. The bar 24 is pro'videdwith a square head'26 for the key. In the closedY position the bar 2lengages behind hook-shaped projections 21 which are secured tothe dooframe 5 by means of screws 28.

I rwish it to be understood that I do not desire to be limited to theexact details of construction illustrated and described herein, forobvious modiilcations will occur to a person skilled in the art.

In the claims hereinafter made no selection of any particular embodimentof my present invention is intended to the exclusion of otherembodiments thereof, and the right subsequently to the door on all sidesfor sealing the space'between the door body and the door frame, theself-sealing means being located on the inner face of anedge of the dooroverlapping the door frame but still within the conilnes of the lutingSealing meansy and having means forjits adjustment from outside thedoor,a`nd the-luting sealing means comprising a peripheral edge surfaceof the door and a peripheral extension on the door frame forming aV-shaped channel opening outwardly around the door and gradually beforse1f-cleaning,and the luting sealingl means being spaced a sumcientdistance from the selfsealing means sov that the adjusting means for theself-sealing means and the V-shaped channel are both accessible withoutinterfering with each other fromoutside the door in its closed positionfor adjustment at will: of the self-sealing means or for manual packingof the luting channel and independently of the presence of each otherwhile both sealing means are still in position on the door. I

2. A combination closure for coke ovens, comprising a door frame and adoor body adapted to it in said frame and comprising both anouterperipheral luting sealing means adapted for holding a manually appliedclay packing seal and an inner peripheral self-sealing means forautomatic metal-on metal sealing surrounding the door on all sides forsealing the space between the door body and the door frame, theself-sealing means being located within a channel on the inner faceof anedge of the door overlapping the door frame but still within theconilnes of the luting sealing means land having means forl its comingmore remote from each other outwardly adjustment from outside the door,andthe luting sealing means comprising a peripheral surface of theaforesaid edge of the door and a peripheral extension on the door frameforming a V-shaped channel opening outwardly around the door andgradually becoming more remote from each other outwardly for selfcleaning, and the luting sealing means being spaced'a suiiicientdistance from the self-sealing means so that the adjusting means for theself-sealing means and the V- shaped channel are both accessible withoutinterfering with each. other from outside the door in its closedposition for adjustment at will of the self-sealing means or for-manualpacking of the luting channel and independently of the presence of eachother while both sealing means are still in position on the door.

PAUL VAN vACKEREN.

